JPH06296402A - Turf-growing mat - Google Patents

Abstract

PURPOSE:To provide a turf-growing mat enabling efficient and easy growth of turf while preventing the proliferation of weeds and the contamination of soil, etc. CONSTITUTION:This turf-growing mat is composed of an upper layer 1 produced by mixing turf seeds in bark flour and bonding with an adhesive, an intermediate layer 2 containing a cushioning organic material such as wood chips, barley straw and rice straw and produced by bonding the organic material with an adhesive and pressing the product and a water-permeable lower layer 3 having gap to enable the passage of the turf root or forming gaps by the lapse of time. Turf can be grown without necessitating much labor and the growth of weeds can be minimized by the use of the mat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mat to be installed in soil for growing lawns such as golf courses and tennis courts.

[0002]

2. Description of the Related Art Conventionally, it has been necessary to uniformly grow lawns in golf courses, lawn tennis fields and the like.

By the way, according to the conventional method, a lawn is directly grown on the ground, or a flat mass of the lawn, which has already grown to some extent, is laid on the soil and further seeds of the lawn are sprayed on it. Was there.

However, the work of spraying grass seeds is relatively troublesome, and the labor cost for this is not negligible.

Moreover, in the conventional method, weeds also grow on the lawn surface, but the removal of the weeds is a complicated work, and when a large amount of herbicide is used to remove the weeds, , The outflow causes social problems such as damage to the cultivation of agricultural products in downstream areas.

[0006]

DISCLOSURE OF THE INVENTION The present invention overcomes the above-mentioned drawbacks of conventional lawn cultivation, does not require labor for lawn cultivation, does not permit the growth of weeds, and is a herbicide. It is an object of the invention to provide a mat capable of growing lawn such that the grass is not used or a small amount of it is used even if the mat is used.

[0007]

Means for Solving the Problems In order to solve the above problems, the composition of the present invention comprises mixing seeds of turf into bark powder, and bonding these with an adhesive, an upper layer, wood chips, wheat straw,
Does any of the cushioning organic materials such as rice straw be bonded with an adhesive, and the organic material is pressed into contact with the intermediate layer, has water to permeate, and has a gap for the grass roots to pass through? Alternatively, it is composed of a lawn growing mat consisting of a lower layer which has a gap with the passage of time.

[0008]

In the above-mentioned structure, the upper layer obtained by mixing bark powder with lawn seeds and joining them with an adhesive is involved in germination and growth of the lawn and gives a pedestrian a tactile sensation similar to that of the ground. Therefore, it is required to have a certain degree of hardness similar to that of soil.

Therefore, the bark powder is bonded by the bonding agent.

On the other hand, even if the bark powders are joined together, rainwater, air and the like penetrate downward because there are gaps between the bark powders.

The upper layer often has a thickness of 1 mm to 2 mm, but is not necessarily limited to this thickness.

[0012] The middle layer, which is made of an organic material having a cushioning property such as wood chips, wheat straw, and rice straw, provides a fertilizer nutrient for the lawn by its own corrosion while retaining moisture.
It has the function of giving a pedestrian a cushioning sensation.

The intermediate layer often has a thickness of about 20 mm to 40 mm, but it is not always limited to this thickness.

The lower layer, which has a gap through which water permeates and through which the grass roots permeate, or a gap due to aging, is in contact with the soil, and the water retained on the mat flows out to the soil. In addition to extending the roots of the lawn to the soil, on the other hand, it plays a role of preventing the overgrowth of weeds from the soil side (as shown in Examples 1, 2, 3, 4 and 5 below). , When a structure in which bark powder is bonded by an adhesive is used as the lower layer, such a bond initially creates a gap through which water can permeate, but a gap through which grass roots can pass. Does not always exist, but by the time the grass roots reached the lower layer,
As a result of aging, the lower layer corrodes and has a gap that allows the grass roots to pass through. ).

The lower layer often has a thickness of about 1 mm to 2 mm, but is not necessarily limited to this thickness.

As described above, the lawn-growing mat of the present invention prevents the overgrowth of weeds and normally grows the lawn. On the other hand, the mat gives a pedestrian a feeling similar to that of the ground. Can be fulfilled.

It should be noted that the reason why the intermediate layer is pressure-contacted beforehand is that if these corrosive organic materials are used as they are, they will be compressed by the walking of pedestrians when they are installed in the soil. Since it is not possible to give the same feeling as walking in the soil, and in the manufacturing process of the mat, since the upper layer and the lower layer are sprayed with air pressure to the intermediate layer, painting is performed, This is based on the fact that the intermediate layer itself needs to be pre-pressed so as to have a constant planar shape.

In the above structure, at least the upper layer and the intermediate layer each use the adhesive (however, in some embodiments, the lower layer also uses the same adhesive as the upper layer). Since the adhesive on the upper layer needs to give the same feel and touch as the ground, an adhesive having a strong adhesive ability is required, and an adhesive made of synthetic resin is usually used.

On the other hand, since the intermediate layer originally has a cushioning property and is used only to maintain the pressure-bonding state, the upper layer does not require a stronger adhesive ability, and the reverse layer does not. It is also possible to use a natural paste such as pine resin paste from the viewpoint that it is desired to be transformed into an effective soil nutrient after corrosion.

[0020]

Example 1 In the example shown in FIG. 1, the thickness is 2 mm.
The upper layer 1, the intermediate layer 2 having a thickness of 30 mm, and the lower layer 3 having a thickness of 2 mm form a mat.

As the upper layer 1, bark powder of larch, lawn seeds mixed in finely crushed sawdust powder,
In addition, these are joined by an adhesive made of a synthetic resin containing ethylene-vinyl acetate copolymer as a main component.

These weight ratios are: bark flour 50%, sawdust flour 20%, seeds 10%, adhesive 20%.

Large sawdust is mixed in the upper layer 1 of Example 1, but this is often used together with bark flour in the process of preparing bark flour, and since the sawdust powder has fine body particles, Although it contributes to the bonding of the upper layer 1, the incorporation of the sawdust powder itself is not a necessary requirement (since the bark powder is sufficiently bonded due to the viscosity of the adhesive).

As the intermediate layer 2, 70%, 15% and 15% of thread-like wood chips made from larch, sawdust powder and pine resin paste, respectively.
The materials are used in a weight ratio of%, and these are pressed together by pressing.

The use of thread-like wood chips is based on the fact that they have good cushioning properties and that they can be easily bonded by an adhesive.

However, it is possible to use wood chips other than this, but in this case, it is required to perform sufficient press working and use a strong adhesive.

The lower layer 3 is similar to the upper layer 1 in that larch bark powder, sawdust powder, and adhesive are 40% and 30%, respectively.
The material is used with a weight ratio of 30%.

In the lower layer 3 of Example 1, the ratio of the adhesive is higher than that in the upper layer 1, but this is required to strengthen the bond of bark powder and prevent the growth of weeds from below. It is derived from something.

Even with such a three-layer structure, the lawn germinates and grows in the upper layer 1, gradually passes through the intermediate layer 2 and the lower layer 3, and then extends toward the soil side.

On the other hand, the upper layer 1, the intermediate layer 2 and the lower layer 3 of the mat gradually corrode with age, and become part of the soil while becoming the fertilizer nutrient of the lawn in the corrosive process.

In actual laying of the mat, if the mat is simply laid on the ground, the mat will be blown by strong winds or the mat will be displaced as the pedestrian walks. , It is required to fix the mat on the ground.

However, it is conceivable that the thickness of the mat becomes thin and the heads of the nails protrude due to the corrosion of the mat due to aging. Since the pressure is applied by the rollers, and the nail is also pushed further downward at this time, such a risk is extremely low.

[0033]

Example 2 In Example 2 shown in FIG. 2, the same material as in Example 1 is used for the upper layer 1, the intermediate layer 2, and the lower layer 3, but the upper layer of the intermediate layer 2 About 5 mm of the portion is the fertilizer layer 21 containing especially fertilizer.

As the fertilizer layer 21, filamentous wood chips such as larch and cedar, large sawdust, organic fertilizer, glue made from pine tree, etc.,
The materials used are 50%, 25%, 5%, and 20% by weight, respectively.

Chemical fertilizers can be used instead of organic fertilizers, but in this case, the weight ratio of inorganic fertilizers may be smaller.

The upper part of the intermediate layer 2 of Example 2 is the fertilizer layer 2
The number 1 is nothing but for the rapid growth of the lawn.

[0037]

[Embodiment 3] The embodiment shown in FIG. 3 has an upper layer 1 and an intermediate layer 2.
The lower layer 3 and the lower layer 3 are made of the same material as in Example 1, but the lower part of the intermediate layer 2 is a herbicide layer 22 having a thickness of about 5 mm.

The herbicide layer 22 is made of larch, cedar, etc. as raw materials, thread-like wood chips, sawdust, herbicide, and pine resin paste, respectively.
The weight ratio is 51%, 27%, 2% and 20%.

With the permeation of rainwater, the herbicide in the herbicide layer 22 permeates the lower layer 3 and reaches the soil to prevent weeds from growing, but the mats have already been spread over the ground. Since the germination and growth of weeds are suppressed by blocking the irradiation of sunlight and by interposing the lower layer 3, even if a metaphorical herbicide is used, its usage fee is much higher than that of the conventional technology. Only a small amount is needed.

Moreover, since the herbicide infiltrates the soil through the gaps in the lower layer 3, the time ratio of the outflow to the downstream is extremely small as compared with the case of spraying the herbicide on the soil. Become.

[0041]

Example 4 In Example 4 shown in FIG. 4, the upper layer 1, the intermediate layer 2 and the lower layer 3 are made of the same material as in Example 1, but the inorganic layer is used throughout the intermediate layer 2. In addition, a herbicide is added, and aerobic bacteria that contribute to the absorption of nutrients by plants are also mixed.

This is because the bacteria that propagate in wood chips are anaerobic bacteria that do not necessarily have a good effect on the absorption of nutrients by the roots of plants, but the aerobic bacteria described above must be mixed. It is possible to dilute the inhibitory factor of anaerobic bacteria and to have the effect of promoting the ripening of organic substances.

As described above, Example 4 is characterized in that not only such aerobic bacteria are added, but also the entire intermediate layer 2 is the fertilizer layer 21 and the herbicide layer 22.

[0044]

[Embodiment 5] In Embodiment 5 shown in FIG. 5, the upper layer 1 and the lower layer 3 are made of the same material as in Embodiment 1, but rice straw, rice husk and pine resin paste are used as the intermediate layer 2 respectively. %, 15%, 1
The material is used in a weight ratio of 5%.

In the case of rice husks, aerobic bacteria are propagated all at once and become good compost by themselves. Therefore, addition of aerobic bacteria and addition of chemical fertilizer as in Example 4 have not been performed. Absent.

It is also possible to use wheat straw instead of rice straw.

[0047]

[Embodiment 6] The embodiment shown in FIG.
For, the same material as in Example 1 is used,
As the lower layer 3 having a thickness of 2 mm, a polyethylene film with 1 mm diameter holes 31 per cm ² is used.

The reason why such holes 31 are provided is to allow rainwater to pass therethrough and grass lawn roots to pass therethrough.

The polyethylene film is used because it has relatively good air permeability as compared with other synthetic resin materials.

However, when a synthetic resin is used as the lower layer 3, the grass roots are less likely to permeate as compared with the case where a natural organic substance is used as in Examples 1 to 5, The problem remains that the lower layer 3 itself cannot corrode and become part of the soil.

As described above, the typical embodiments of the present invention have been described. However, the structure of the present invention is not limited to these embodiments, and it goes without saying that a structure combining these embodiments is also possible. is there.

In the above embodiment, the total thickness is about 34 m.
Although the thickness of the mat is m, the thickness of the mat depends on the material used in the mid layer 2 and the degree of pressurization, and in practice, the thickness can be set to about 20 to 50 mm.

[0053]

According to the present invention having the above-mentioned structure, since lawn seeds are mixed in the upper layer of the mat, it is not necessary to spray lawn seeds.

Moreover, the mat blocks the sunlight from irradiating the ground surface, and the lower layer has at least permeability and a gap through which the grass roots pass, so that weeds germinate and grow. It is possible to form a lawn in which weeds are extremely rarely overgrown by preventing the penetration of the grass.

All or most of the material constituting the mat is a natural organic substance, capable of accumulating and retaining air and moisture, and it corrodes with time to become a fertilizer by itself, and becomes a part of soil to be suitable for turf. Can be raised.

As described above, since the mat of the present application can be used as a fertilizer by itself and can prevent the growth of weeds, the use of fertilizers and herbicides necessary for the growth of lawn can be reduced, and the use of metaphorical chemical fertilizers and herbicides Even if it is used, it is possible to prevent the rapid outflow to the soil in the lower layer, so prevent the occurrence of social problems due to the outflow of pesticides to the downstream areas as in the case of conventional lawn cultivation as much as possible. You can

When the natural organic matter used in the mat of the present application becomes an organic fertilizer when corroded, it makes the land alkaline and prevents the oxidation of the land as in the case of using a so-called pure chemical fertilizer. You can

In addition to these effects, it becomes possible to effectively use bark powder, wood chips, sawdust, etc., which are generated in large quantities at the wood manufacturing site, without discarding them.

As described above, the present invention has many advantages over the conventional methods for growing grass, and therefore its value is immense.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the structure of Example 1.

FIG. 2 is a cross-sectional view showing a configuration of Example 2.

FIG. 3 is a cross-sectional view showing the structure of Example 3.

FIG. 4 is a cross-sectional view showing the structure of Example 4.

FIG. 5: Cross-sectional view showing the configuration of Example 5.

FIG. 6 is a cross-sectional view showing the structure of Example 6.

[Simple explanation of the sign]

 1: Upper layer 2: Middle layer 21: Fertilizer layer 22: Herbicide layer 3: Lower layer 31: Pore

Claims (8)

[Claims] 1. The bark flour is mixed with turf seeds, and these are bonded with an adhesive to bond any of an upper layer bonded to them, an organic material having cushioning properties such as wood chips, wheat straw, rice straw, etc., with an adhesive. For growing a lawn, which is composed of an intermediate layer formed by pressing the organic material, and a lower layer that allows water to permeate and has a gap for grass roots to pass through or a gap due to aging. mat 2. The lawn growing mat according to claim 1, wherein an upper layer of the intermediate layer is a fertilizer layer containing fertilizer. 3. The lawn growing mat according to claim 1, wherein a lower part of the intermediate layer is a herbicide layer containing a herbicide. 4. The lawn according to claim 1, wherein filamentous wood chips are used as the cushioning organic material used in the intermediate layer, sawdust powder is added thereto, and pine resin paste is used as an adhesive. Raising mat 5. The lawn growing mat according to claim 1, wherein at least one of wheat straw and rice straw is used as the organic material having a cushioning property of the intermediate layer. 6. The lawn growing mat according to claim 1, wherein sawdust is added to bark flour in the upper layer. 7. The lawn growing mat according to claim 1, wherein a material obtained by mixing bark flour with sawdust powder and joining them with an adhesive is used as the lower layer. 8. The lawn growing mat according to claim 1, wherein the lower layer is made of synthetic resin having holes for allowing water to permeate therethrough and a lawn root for permeating.